Originally Posted by Pat_Rogers
Knightstar- the "X" in XM means that the particular lot was rejeceted. A while back it could have been for cosmetic reasons- lately it seems like there are many other varied and serious issues for rejection, showing a lack of QC.
We had issues with a lot of XM193. We sent it back to the factory. It tested out at 62kpsi. That is like firing an almost proof load everytime you press the trigger.
Any time you shoot anything with an "X" you are rolling the dice. You have had good luck (as have i in the past), but i an very cynical when it comes to guns and ammunition.
I sell BH ammo as a service to students attending my classes, so i am biased.
However, i sell it because it is the best i have seen.